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4. Troubleshooting
4-1 Information Display Codes
Check code
Displayed code
CAUSE
SOLUTION
C-21
Oven heating over
1.
Disconnect power. Open the back cover.
Disconnect sensor harness from control.
Measure sensor resistance
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are any problems, replace oven sensor.
2.
Check the broil, bake and convection heater.
Check the resistance of the each heater.
3.
Check whether DLB of sub PCB, Broil,
Bake and Convection heater relay are being
worked normally.
4.
Check whether there is any disconnection
of harness which is linked with main PCB on
main PCB.
5.
Check the resistance of oven sensor
connector on main PCB.
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C-d0
Shorted key
1.
Check whether cable of keypad has been
inserted into connector of main PCB.
2.
Check whether between main PCB and
connector or keypad and cable have a short
circuit.
3.
If there is not a problem occurred with
connector on main PCB and cable of
keypad, replace the main PCB.
C-d1
Door locking
1.
Disconnect power. Open the back cover.
Check whether harness has been
connected with door lock switch and motor.
2.
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lock motor is to be normal one or not.
3.
With operating door lockout, measure a
voltage of connector on harness which is
linked with door lock motor.
(Normal Voltage : AC 120V)
4.
Check whether door locking switch is being
worked normally.
